mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* Copyright (C) 1994, 1997, 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
|
|
On-Line Applications Research Corporation.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int failures = 0;
|
|
int i;
|
|
|
|
auto void try (int value, int expected);
|
|
|
|
void try (int value, int expected)
|
|
{
|
|
if (ffs (value) != expected)
|
|
{
|
|
fprintf (stderr, "%#x expected %d got %d\n",
|
|
value, expected, ffs (value));
|
|
++failures;
|
|
}
|
|
}
|
|
|
|
try (0, 0);
|
|
for (i=0 ; i<32 ; i++)
|
|
try (1<<i, i+1);
|
|
for (i=0 ; i<32 ; i++)
|
|
try ((~0 >> i) << i, i+1);
|
|
try (0x80008000, 16);
|
|
|
|
if (failures)
|
|
printf ("Test FAILED! %d failure%s.\n", failures, &"s"[failures == 1]);
|
|
else
|
|
puts ("Test succeeded.");
|
|
|
|
exit (failures);
|
|
}
|